BEST MAGSAFE 2 TO USB-C CONVERTER | Dreamvasion USB C Adapter Compatible for MagSafe 2 Review
You can buy adapters (dongle) that converts USC-C PD signals to Magsafe1 and 2 (and in fact to any needed voltage to any old laptop). There also the inverse adapters that converts from a Magsafe 1 or 2 chargers to USB-C output to charge a modern computer although less useful.